【題目】Many countries are now setting up national parks ________ animals and plants can be protected.

【題目】If the traffic so heavy, I could have been back by 6 o’clock.

【題目】He is so busy. He cannot afford enough time with his son ________ he wants to.

【題目】Happiness is a feeling ________ there is always something or somebody lighting up your eyes and making you want to sing for no reason.

【題目】It is difficult for us to imagine the beauty of Jiuzhaigou, ______ we have been there in person.

【題目】The Marathon is a long distance race created ________ a Greek soldier.

【題目】 students English well, the teacher tries to speak English in class very often.

【題目】—Where was I?

【題目】It is reported the housing prices in some big cities fall in different degrees.

【題目】I believe that she must have been at home last night, ________?